26 citations · 29 across the 7 of their papers we have counts for
7 papers
Quantum criticality in cuprate superconductors revealed by optical conductivity measurement
Hwiwoo Park, Sung-Sik Lee, G. D. Gu +1
The ubiquitous temperature ()-linear behaviour of the transport scattering rate in the normal state of strongly correlated electron systems is called strange metallicity \cite{z…
An inversion problem for optical spectrum data via physics-guided machine learning
Hwiwoo Park, Jun H. Park, Jungseek Hwang
We propose the regularized recurrent inference machine (rRIM), a novel machine-learning approach to solve the challenging problem of deriving the pairing glue function from measure…
Bosonic spectrum of a correlated multiband system, BaFe1.80Co0.20As2, obtained via infrared spectroscopy
Chandan Kumar Panda, Hong Gu Lee, Hwiwoo Park +3
We investigated a single crystal BaFe(2-x)CoxAs2 (Co-doped BaFe2As2: Co-doped Ba122) with x = 0.20 using infrared spectroscopy. We obtained the bosonic spectrum from the measured s…
Fermi liquid-like behaviour of cuprates in the pseudogap phase simulated via T-dependent electron-boson spectral density
Hwiwoo Park, Jungseek Hwang
We investigated the temperature- and frequency-dependent optical scattering rates in the pseudogap phase of cuprates using model pseudogap and electron-boson spectral density (EBSD…
Planckian behavior of cuprates at the pseudogap critical point simulated via flat electron-boson spectral density
Hwiwoo Park, Jun H. Park, Jungseek Hwang
Planckian behavior has been recently observed in La1.76Sr0.24CuO4 at the pseudogap critical point. The Planckian behavior takes place in an intriguing quantum metallic state at a q…
Emergence of flat bands and ferromagnetic fluctuations via orbital-selective electron correlations in Mn-based kagome metal
Subhasis Samanta, Hwiwoo Park, Chanhyeon Lee +6
Kagome lattice has been actively studied for the possible realization of frustration-induced two-dimensional flat bands and a number of correlation-induced phases. Currently, the s…
Electron-boson spectral density functions of cuprates obtained from optical spectra via machine learning
Hwiwoo Park, Jun H. Park, Jungseek Hwang
The electron-boson spectral density (or glue) function can be obtained from measured optical scattering rate by solving a generalized Allen formula, which relates the two quantitie…